1/4mi Runs - Miata Turbo Forum - Boost cars, acquire cats.

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Old 08-19-2007, 04:03 PM   #1
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Default 1/4mi Runs

Went out to Ennis, TX and ran the 1/4mi last night. Did 6 passes. I did all launches between 2k - 3k rpm. All bogged off the line, but at least I didn't have to get a flatbed ride home. It was a Pro Tree.

Best run:
RT .911
60" 2.359
330" 6.385
1/8th 9.704
mph 75.40
1000" 12.540
1/4 14.946
mph 94.10
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Old 08-19-2007, 04:08 PM   #2
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not horrible you need more rpms, more traction abd abit more practice and probably traction to 94 mph is 13 sec range for sure.
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Old 08-20-2007, 04:48 AM   #3
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How much boost, what mods, etc?

I take it the flatbed mention is meaning you were trying not to grenade the stock diff?
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Old 08-20-2007, 11:42 AM   #4
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I ran my car a few weeks back and my rt and 60ft are pretty close so ill post up my time for comparison:

rt: .958
I1: 2.258
I2: 6.025
I3: 9.145 @ 80.505mph
I4: 11.804
ET: 14.064 @ 101.3mph

And I was running 13psi spiking to 15, pig rich and a stock cat plugging up the exhaust and falken Azenis w/rx7 lsd for traction.
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Old 08-20-2007, 04:30 PM   #5
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Quote:
Originally Posted by kotomile View Post
How much boost, what mods, etc?

I take it the flatbed mention is meaning you were trying not to grenade the stock diff?
158whp/157tq 8psi

Yes, not wanting to destroy my diff.
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Old 08-20-2007, 04:32 PM   #6
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Quote:
Originally Posted by akaryrye View Post
I ran my car a few weeks back and my rt and 60ft are pretty close so ill post up my time for comparison:

rt: .958
I1: 2.258
I2: 6.025
I3: 9.145 @ 80.505mph
I4: 11.804
ET: 14.064 @ 101.3mph

And I was running 13psi spiking to 15, pig rich and a stock cat plugging up the exhaust and falken Azenis w/rx7 lsd for traction.
What were you launching at? What kind of tires/psi? Whp/tq?
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Old 08-20-2007, 07:53 PM   #7
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I think the azeni's were at like 32psi and I was launching around 4500rpm. It spun all the way through first but Ive found its faster to spin the tires and keep the revs up than bog it down and wait for the turbo which would make the wheels spin anyway in first when it kicks in. Whp and torque? I have no idea. I mean I could be anywhere between 180 and 220hp, but probably around 200
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